Can .RO domains with diacritics be registered?
Find out from this article whether .RO domains with diacritics can be registered.
If the desired .RO domain name contains diacritics, it can be registered by specifying either the IDN form (IDN conversion utility - bucurești.ro) or the unique ACE form (xn--bucureti-m9c.ro).
More information about IDN can be found on the Rotld website - Diacritical Domains (IDN) questions.